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Man Pages
BUF_TIMELOCK(9) FreeBSD Kernel Developer's Manual BUF_TIMELOCK(9)

BUF_TIMELOCK
locks a buffer

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/uio.h>
#include <sys/bio.h>
#include <sys/buf.h>
int
BUF_TIMELOCK(struct buf *bp, int locktype, char *wmesg, int catch, int timo);

The BUF_TIMELOCK() function locks the given buffer, and limits the amount of time it will sleep to timo and OR's catch into the sleep's priority. wmesg is the wmesg used in the sleep.
Its arguments are:
bp
The buffer to lock.
locktype
Flags controlling the type of lock. See lockmgr(9) for details.
wmesg
The wmesg used in any sleeps while acquiring the lock.
catch
Priority OR'd into the sleep's priority.
timo
The timeout for any sleeps encountered during the lock.

A value of 0 is returned on success. See lockmgr(9) for details on non-zero return values.

buf(9), BUF_LOCK(9), BUF_UNLOCK(9), lockmgr(9)

This manual page was written by Chad David <davidc@acns.ab.ca>.
July 9, 2001 FreeBSD 12.0-RELEASE

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